Regency P121-NG Owners & Installation Manual

Regency ® P121/P121LC/P121RC/P131 Zero Clearance Room Sealed Gas Fireplace20Diagram 3Diagram 5Diagram 1Diagram 2Note: Apply sealant "Mill-Pac" to inner pipeand high temperature silicone seal-ant to outer pipe on every twist-lockjoint.VERTICALTERMINATION1) Maintain the 1-1/4" clearances(air spaces) to combustibles whenpassing through ceilings, walls,roofs, enclosures, attic rafter, orother nearby combustible surfaces.Do not pack air spaces with insu-lation. Check pages 17-19 for themaximum vertical rise of the flueingsystem and the maximum horizontaloffset limitations.will penetrate the ceiling. Drill a small holeat his point. Next, drop a plumb bob fromthe roof to the hole previously drilled in theceiling, and mark the spot where the flue willpenetrate the roof. Determine if ceiling joists,roof rafters or other framing will obstruct theflueing system. You may wishto relocate theappliance or tooffset, as shownin Diagram 2to avoid cuttingload bearingmembers.3) A Firestop spacer must be installed in thefloor or ceiling of every level. To install theFirestop spacer in a flat ceiling or wall, cuta 10 inch square hole. Frame the hole asshown in Diagram 3 and install the fire-stop.4) Assemble the desired lengths of pipe andelbows. Ensure that all pipes and elbow con-nections are in the fully twist-locked positionand sealed.5) Cut a hole in the roof centered on the smalldrilled hole placed in the roof in Step 2. Thehole should be of sufficient size to meetthe minimum requirements for clearanceto combustibles of 1-1/4". Slip the flashingunder the shingles (shingles should overlaphalf the flashing) as per Diagram 4.Roof Pitch Minimum Vent HeightFeet Metersflat to 7/12 2 0.61over 7/12 to 8/12 2 0.61over 8/12 to 9/12 2 0.61over 9/12 to 10/12 2.5 0.76over 10/12 to 11/12 3.25 0.99over 11/12 to 12/12 4 1.22over 12/12 to 14/12 5 1.52over 14/12 to 16/12 6 1.83over 16/12 to 18/12 7 2.13over 18/12 to 20/12 7.5 2.29over 20/12 to 21/12 8 2.44Diagram 4: The upper half of the flashing isinstalled under the roofing material and notnailed down until the chimney is installed. Thisallows for small adjustments.6) Continue to assemble pipe lengths.Note: If an offset is necessary in the atticto avoid obstructions, it is importantto support the fl ue pipe every 3 feet,to avoid excessive stress on the el-bows, and possible separation. Wallstraps are available for this purpose(Diagram 2).Galvanized pipe is desirable above the roof-line due to its higher corrosion resistance.Continue to add pipe sections through theflashing until the height of the flue cap meetsthe minimum height requirements specifiedin Diagram 5 or local codes. Note that for2) Set the gas appliancein its desired location.Drop a plumb bob downfrom the ceiling to theposition of the applianceflue exit, and mark thelocation where the flueDiagram 3Diagram 4Diagram 58) Slide the appliance and flue assemblytowards the wall carefully inserting the fluepipe into the flue cap assembly. It is importantthat the flue pipe extends into the flue capsufficient distance so as to result in a mini-mum pipe overlap of 1-1/4 inches. Securethe connection between the flue pipe andthe flue cap by attaching the two sheet metalstrips extending from the flue cap assemblyinto the outer wall of the flue pipe. Use thetwo sheet metal screws provided to connectthe strips to the pipe section. See Diagram4.9) Install wall thimble in the center of the 10"square and attach with wood screws (Dia-gram 5).INSTALLATION